Fluid outlet for pipes

ABSTRACT

A fluid outlet for pipes which comprises an apertured grummet having a peripheral groove in the grummet engageable in an aperture in a pipe, and a nipple engageable through the aperture in the grummet to lock the grummet to the pipe and provide an opening from the pipe, a shoulder being provided optionally to engage the inner face of the grummet to prevent blowing out of the nipple under pressure. The grummet can be rotational and have a sloping inner end to effect flow control.

United States Patent 1191 Menzel Feb. 5, 1974 FLUID OUTLET FOR PIPES2,706,409 4 1955 Preston 73 212 2,888,028 5/1959 Hill 251/146 [75] gsg gy Torrens Park 3,481,310 12/1969 Alburger 285/192 x [73] Assignee: lplexPlastic Industries Pty. Ltd-, Primary ExaminerMartin P. SchwadronElizabeth, South Australia, Assistant Examiner-David R. MatthewsAustralia Attorney, Agent, or Firm-Wofford, Felsman & Fails [22] Filed:Dec. 3, 1971 1211 Appl. No.: 204,454 1 TRACT A fluid outlet for pipeswhich comprises an apertured 521 US. Cl. 137/317, 73/212 g i aPeriPheFa' 9 indthe grulmmet 511 1111.131. B23b 41/08, F16e 41/04 gf 2 33 a 1 [58] Field of Search 137/315, 317, 318; 285/162, f e g i gwmme?285/189, 192, 196; 16/2; 73/182, 212, 422 t e 6 8 .Openmg mm the pipe, ashoulder being provided opt1onally to en- 56] References Cited gage theinner face of the grummet to prevent blowing out of the nipple underpressure. The grummet can be UNITED STATES PATENTS rotational and have asloping inner end to effect flow 1,145,360 7/1915 Burnham 73/212 onn-0L1,869,962 8/1932 Golden 73/212 X 2,057,645 10/1936 Hamilton 73/212 2Claims, 4 Drawing Figures FLUID OUTLET FOR PIPES This invention relatesto a fluid outlet for pipes.

BACKGROUND OF INVENTION It is customary at present when laying pipes tocarry water or the like particularly for reticulation to trees or thelike on the drip system, to provide a number of outlets in a pipe fromwhich water can be drawn.

This is at present achieved by cutting the pipe and inserting a Teepiece, or a tube is simply inserted through the wall of the pipe.

With the use of plastic pipes certain difficulties occur in providingthese outlets, and the object of this invention is to provide animproved form of outlet which can be readily inserted in a plastic orother pipe and which will require a minimum of fixing and subsequentattention.

SUMMARY OF INVENTION Basically the invention comprises the use of aresilient grummet which can be inserted into an aperture in the pipe andinto which can then be pushed a nipple having a barbed or tapered endsuch that after it is pushed through the aperture of the grummet thenipple will be firmly held against displacement, a further feature whichcan be used if required being a bevelled inner end to the nipple so thatthe nipple can be positioned to have an opening facing the direction offlow of fluid through the pipe or can be otherwise positioned accordingto the flow through the nipple which is intended.

BRIEF DESCRIPTION OF THE DRAWINGS In the drawings:

FIG. 1 is a perspective view of one form of the invention,

FIG. 2 shows the invention of FIG. 1 fitted to a pipe,

FIG. 3 is a central section through the invention fitted to a pipe, and

FIG. 4 shows a modification of the device in central section as fittedto a pipe.

It will be realised that such a device can be constructed in a verysimple manner because it is only necessary to form an aperture in thepipe of a required size so that a rubber or plastic or other resilientgrummet can be positioned in the aperture, and the device then fitted.

Referring first to FIGS. 1, 2 and 3 the grummet 1 comprises a resilientmember which has a peripheral groove 2 which allows the grummet l to beaccommodated by pushing it partway through an aperture 3 in the pipe 4untilthe groove 2 is engaged by the edges of the aperture 3 in the pipe4 whereupon expansion of the grummet will locate the grummet in theaperture 3 of the pipe 4 but leaving a central hole 5 in the grummetfree for the nipple 6 to be pushed into same, the size of the nipple 6of course being such that as it is pushed through the grummet 1 itcompresses the material of the grummet and holds the material in thiscompressed state, the nipple for this purpose being so arranged thatwhen once inserted pressure of water or the like will not blow it out ofthe grummet which can as said be achieved by having the inner portion ofthe nipple 6, which is pushed through the grummet, either barbed ortapered as shown by 7 to provide a shoulder 8 which then engages theinner face 9 of the grummet gages a branch pipe 18.

and thus prevents easy withdrawal of the nipple 6 when once inserted.

A flange 10 on the nipple serves to engage the outer face 11 of thegrummet so that the nipple cannot be pushed through too far, and as willbe realised the nipple is provided with aprojecting portion 12 ontowhich a hose can be fitted, this portion having external ridges 13 toprovide a grip.

It will be obvious that the projecting portion 12 can have an externalor internally threaded socket to take a correspondingly threaded memberwhere a device such as a drip feed is to be joined to it.

The actual shape of the projecting portion outside of the grummet l isimmateiral for the purposes of this invention but will be dictated bythe requirements and the type of apparatus which is to be fixed to it,and of course the nipole 6 can include on it flow control means such asa tap or the like where this is required as the unit can be usedanywhere where a connection is to be made between any form of fittingand the inside of a pipe carrying fluid.

By using a simple compressible grummet 1 which can be placed through anaperture 3 in the pipe 4 and will then expand to locate itself on theaperture, with a flange projection 8 and 10 one on each side of theaperture 5, a ready seal is provided into which the nipple can then bepushed, and as said by barbing or tapering the end of the nipple it ispossible to ensure that the nipple will not be blown out by pressurebecause the size of the nipple will be such that the grummet will itselfbe kept under the required pressure to prevent leakage even under highpressures, and of course the flanged inner portion of the grummet willbe forced hard against the inner wall of the pipe to ensure an effectiveseal.

To control flow of liquid from the pipe 4 through the hollow 14 of thenipple the inner end 15 of the nipple is sloped so that its opening canbe turned to either face into the direction of flow in the pipe 4 oraway from it or it can be medially located as shown in FIG. 3.

The nipple itself can be provided with an indicator 16 on its outerportion adjacent the outer face 10 of the grummet which can show thedirection of the inclined inner end 15 of the nipple 6 when this isused, so that an operator by turning the nipple can either face theopening in the nipple into the direction of flow down the pipe, or if alesser flow is required the nipple can simple be turned so that theopening faces downstream. In this way very effective control of flow cantake place and it will be realised from the foregoing description that asimple and effective device is provided which can be readily inserted atany point by either simply drilling a hole of the required diameter inthe pipe or providing an apertured pipe, such a unit being particularlyuseful for water reticulation in drip type feeds because a pipeline canbe placed in position and the hole then drilled adjacent each of thetrees which are to be watered and the nipple simply inserted andconnected to the flow regulators.

In the form shown in FIG. 4, in which similar reference numerals areused for corresponding parts, the nipple 6 has an expanded portion 17 onit which en- What is claimed is:

l. A fluid outlet adapted to be inserted in a first aperture in a pipehaving a fluid normally flowing therethrough, comprising:

a grummet including:

a second aperture penetrating therethrough; and a groove disposedperipherally about said grummet intermediate its ends and engageable insaid first aperture in said pipe; nipple having a longitudinallyextending passageway and having an inner end and an outer end, saidinner end being insertable through said second aperture in said grummetfor locking said grummet in said first aperture in said pipe andproviding an opening from said pipe; said nipple having an exteriorsealing surface that sealingly engages the interior surface of saidsecond aperture; said nipple having a tapered portion with a shoulderwhich passes through said second aperture in said grummet to have theshoulder engage the inner face of said grummet, said nipple having anouter shoulder means for engaging the outer face of the grummet wherebysaid nipple is operatively axially contained in said grummet and forcessaid grummet into contact with said first aperture to seal said firstapertureexcepting for flow through said passageway in said nipple; saidnipple having means on the outer part of said nipple to engage flowconduit means, such as a hose to receive flow from the nipple; and Ipartial flow control comprising having said nipple sealingly rotatablewithin said second aperture of said grummet and having a slope on saidinner end of said nipple, whereby rotation of the said nipple controlsvolume of flow through the nipple by appropriately facing the slope intoor out of the direction of flow; said partial flow control meansincluding an indicator on said nipple outside of said grummet forindication of the direction with respect to the longitudinal axis of thepipe faced by the slope of the sloped inner end of said nipple.

2. A fluid outlet comprising:

a pipe adapted for having a fluid flowing therethrough;

a first aperture penetrating laterally through a side wall of said pipe;

a grummet having a peripheral groove intermediate its ends and sealinglyengaged in said first aperture in said pipe, said grummet having asecond aperture extending axially through same;

a nipple inserted through said second aperture in said grummet, saidnipple having a longitudinally extending passageway and having a taperedportion with a shoulder which passes through the said aperture in thegrummet to have the shoulder engage the inner face of the grummet, and ashoulder on said nipple to engage the outer face of the grummet, wherebythe nipple is axially confined in the said grummet and forces thegrummet into contact with the first aperture in the pipe to seal saidfirst aperture excepting for flow through the passageway in the saidnipple, said nipple having means on the outer part of said nipple toengage flow conduit means such as a hose to receive flow from thenipple; and

a partial flow control means comprising having said nipple sealinglyrotatable within said aperture of said grummet and having on said innerend of said nipple a slope, whereby rotation of said nipple controlsvolume of flow through said nipple by appropriately facing the slopeinto, parallel with, or out of the direction of flow; said partial flowcontrol means including an indicator on said nipple outside of saidgrummet for indication of the direction with respect to the longitudinalaxis of the pipe faced by the slope of the sloped inner end of saidnipple.

1. A fluid outlet adapted to be inserted in a first aperture in a pipehaving a fluid normally flowing therethrough, comprising: a grummetincluding: a second aperture penetrating therethrough; and a groovedisposed peripherally about said grummet intermediate its ends andengageable in said first aperture in said pipe; a nipple having alongitudinally extending passageway and having an inner end and an outerend, said inner end being insertable through said second aperture insaid grummet for locking said grummet in said first aperture in saidpipe and providing an opening From said pipe; said nipple having anexterior sealing surface that sealingly engages the interior surface ofsaid second aperture; said nipple having a tapered portion with ashoulder which passes through said second aperture in said grummet tohave the shoulder engage the inner face of said grummet, said nipplehaving an outer shoulder means for engaging the outer face of thegrummet whereby said nipple is operatively axially contained in saidgrummet and forces said grummet into contact with said first aperture toseal said first aperture excepting for flow through said passageway insaid nipple; said nipple having means on the outer part of said nippleto engage flow conduit means, such as a hose to receive flow from thenipple; and a partial flow control comprising having said nipplesealingly rotatable within said second aperture of said grummet andhaving a slope on said inner end of said nipple, whereby rotation of thesaid nipple controls volume of flow through the nipple by appropriatelyfacing the slope into or out of the direction of flow; said partial flowcontrol means including an indicator on said nipple outside of saidgrummet for indication of the direction with respect to the longitudinalaxis of the pipe faced by the slope of the sloped inner end of saidnipple.
 2. A fluid outlet comprising: a pipe adapted for having a fluidflowing therethrough; a first aperture penetrating laterally through aside wall of said pipe; a grummet having a peripheral grooveintermediate its ends and sealingly engaged in said first aperture insaid pipe, said grummet having a second aperture extending axiallythrough same; a nipple inserted through said second aperture in saidgrummet, said nipple having a longitudinally extending passageway andhaving a tapered portion with a shoulder which passes through the saidaperture in the grummet to have the shoulder engage the inner face ofthe grummet, and a shoulder on said nipple to engage the outer face ofthe grummet, whereby the nipple is axially confined in the said grummetand forces the grummet into contact with the first aperture in the pipeto seal said first aperture excepting for flow through the passageway inthe said nipple, said nipple having means on the outer part of saidnipple to engage flow conduit means such as a hose to receive flow fromthe nipple; and a partial flow control means comprising having saidnipple sealingly rotatable within said aperture of said grummet andhaving on said inner end of said nipple a slope, whereby rotation ofsaid nipple controls volume of flow through said nipple by appropriatelyfacing the slope into, parallel with, or out of the direction of flow;said partial flow control means including an indicator on said nippleoutside of said grummet for indication of the direction with respect tothe longitudinal axis of the pipe faced by the slope of the sloped innerend of said nipple.